Contact tracing

Under-fire service failed to reach 113,000 people known to have had close contact with Covid cases.
Users of Android devices have reportedly been among the worst hit.
He's the vice president's second aide to contract the virus.
National restrictions were not inevitable, but because of the government’s incompetence they now are, writes Rachel Reeves MP.
A follow-up message will now be sent to reassure those worried by alerts. But “ghost notifications” cannot be stopped.
"People who know their own community are bound to be better than Whitehall or national contact tracers", communities secretary Robert Jenrick admits.
Service run by Dido Harding goes backwards once more on key target need to make system viable.
The service is going backwards on the key target needed to make it viable. Just one in six tests were turned around within 24 hours.
"It records the minimal amount of personal data and most of the data is only recorded on the phone," says one cyber security expert.
The NHS Covid-19 app will be released this week but questions remain unanswered about how it has performed during testing.